.section-1 {
  position: relative;
  background-color: #000;
}

.section-1 #hdimg {
  position: absolute;
  bottom: 0;
}

.section-1 #home {
  position: absolute;
  top: 15%;
  left: 15%;
  bottom: 15%;
  font-weight: 700;
  color: #FFF;
}

.section-1 #home h1 {
  background-color: rgba(0, 0, 0, 0.22);
  border: 5px solid #FFF;
}

.section-1 #home h2 {
  color: #000;
  background-color: #FFF;
}

.section-1 #home h2, .section-1 #home h4 {
  /*字母间隔*/
  letter-spacing: 2px;
  font-weight: 700;
}

.section-1 #home div {
  width: 100%;
  position: absolute;
  bottom: 0;
}

.section-1 #home ul li a {
  border: 2px solid white;
  border-radius: 5px;
  display: block;
}

.section-1 #home ul li:hover a {
  color: #000;
  background-color: #fff;
}

.section-2 {
  position: relative;
}

.container {
  position: relative;
  top: 15%;
}
.section-2 .container h2 {
  display: inline-block;
  margin:0 auto;
}